Opposing fountains of plasma and particles spanning 23 million light-years are the longest pair of black hole jets ever seen. That’s far enough to influence the evolution of the universe on ...

Astronomers have spotted a massive pair of jets releasing material from a distant black hole. The jets are so large they span about 140 Milky Way galaxies in length.

Dubbed “Porphyrion” after a mythological Greek giant, this immense structure originates from a period when the universe was just 6.3 billion years old, roughly half its current age of 13.8 ...

Astronomers have seen the largest jets ever found erupting from a black hole. The giant jet system Porphyrion is 23 million light-years long, equal to 140 side-by-side Milky Way galaxies.

A supermassive black hole blasting astrophysical jets into space has carved out the biggest structure of galactic origin we've ever seen. It's been named Porphyrion, after the king of giants in ...

Nicknamed Porphyrion after a mythological Greek giant, these jets span roughly 7 megaparsecs, or 23 million light- years. That is equivalent to lining up 140 Milky Way galaxies back-to-back.

An artist's illustration of the longest black hole jet system ever observed. Nicknamed Porphyrion after a mythological Greek giant, these jets span roughly 7 megaparsecs, or 23 million light-years.

Astronomers have named the jets Porphyrion, after a giant from Greek mythology. They were spotted far enough away that the universe was only 6.3 billion years old – less than half its present age.